TEXAS CDL AIR BRAKES PRACTICE TEST
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The air brakes endorsement applies to applicants who wish to drive a vehicle with air brakes in Class A, B, or C CDL. To drive a vehicle with air brakes, you must pass the air brake component of the Texas CDL knowledge test. The TX CDL air brakes test consists of 25 questions, and you'll need at least 20 correct answers to pass (80%). The test covers the information found in the air brakes section of the Texas CDL Manual. Take this TX CDL practice test now to prepare for the actual air brakes test!
1.
If you must stop on a one-way or divided highway, place your warning devices:
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100 feet, 200 feet, and 300 feet toward the approaching traffic.
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10 feet, 100 feet, and 200 feet toward the approaching traffic.
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10 feet, 50 feet, and 150 feet toward the approaching traffic.
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50 feet, 100 feet, and 150 feet toward the approaching traffic.
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2.
It is not safe to drive a vehicle that has brake drums with cracks that are longer than ___ the width of the friction area.
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9/10
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1/4
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1/2
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3/5
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3.
Most heavy duty vehicles use ___ air brake systems for safety.
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single
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reduced
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triple
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dual
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4.
Air brakes:
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are an effective way to stop large and heavy vehicles.
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can improve fuel efficiency.
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should be used only when driving on wet roads.
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are prohibited on larger vehicles.
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5.
When a tire fails, you must:
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get out and check all the tires after you have come to a stop.
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hold the steering wheel firmly.
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stay off the brake.
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All of the above.
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